There are 200 items in /Applications on the booted master drive
There are 167 items in the /Applications folder on the Data volume of the un-booted clone
There are 167 items in the /Applications folder on the System volume of the un-booted clone.
There are 200 items in the /Applications folder of the BOOTED clone
There are 167 items in the /Applications folder on the Data volume of the un-booted master drive
There are 167 items in the /Applications folder on the System volume of the un-booted master drive
You can't see all your apps if you examine your un-booted volume? That doesn't make any sense.
Nor is it the case in Catalina in which I see 26 items in /Apps in my booted volume, and 9 items in /Apps and 17 in /System/Apps in my un-booted volume.
The new Great Equalizer is the SEND button.
In Memory of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire